Apatite ≈ Apatite
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β-tricalcium phosphate for bone substitution: Synthesis and properties Open
β-tricalcium phosphate (β-TCP) is one the most used and potent synthetic bone graft substitute. It is not only osteoconductive, but also osteoinductive. These properties, combined with its cell-mediated resorption, allow full bone defects …
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Recent advances in the synthesis, functionalization and biomedical applications of hydroxyapatite: a review Open
Hydroxyapatite (HA) is a member of the Ca apatite family.
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Hydroxyapatite–-Past, Present, and Future in Bone Regeneration Open
Hydroxyapatite (HA) is an essential element required for bone regeneration. Different forms of HA have been used for a long time. The essence of bone regeneration always revolves around the healthy underlying bone or it may be the surround…
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Calcium Silicate and Calcium Hydroxide Materials for Pulp Capping: Biointeractivity, Porosity, Solubility and Bioactivity of Current Formulations Open
Aim The chemical-physical properties of novel and long-standing calcium silicate cements versus conventional pulp capping calcium hydroxide biomaterials were compared. Methods Calcium hydroxide–based (Calxyl, Dycal, Life, Lime-Lite) and ca…
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Repair of tooth enamel by a biomimetic mineralization frontier ensuring epitaxial growth Open
Study shows the repair of enamel via a biomimetic growth frontier that is constructed from calcium phosphate ion clusters.
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Hydroxyapatite and Fluorapatite in Conservative Dentistry and Oral Implantology—A Review Open
Calcium phosphate, due to its similarity to the inorganic fraction of mineralized tissues, has played a key role in many areas of medicine, in particular, regenerative medicine and orthopedics. It has also found application in conservative…
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Bioactive calcium phosphate–based glasses and ceramics and their biomedical applications: A review Open
An overview of the formation of calcium phosphate under in vitro environment on the surface of a range of bioactive materials (e.g. from silicate, borate, and phosphate glasses, glass-ceramics, bioceramics to metals) based on recent litera…
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Hydrothermal Alteration Revealed by Apatite Luminescence and Chemistry: A Potential Indicator Mineral for Exploring Covered Porphyry Copper Deposits Open
Apatite is a common resistate mineral occurring in a range of host rocks and ore-related hydrothermal alteration assemblages. Apatite in several porphyry copper deposits in British Columbia has a unique set of physical and compositional ch…
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Recent Evidence on Bioactive Glass Antimicrobial and Antibiofilm Activity: A Mini-Review Open
Bone defects caused by trauma or pathological events are major clinical and socioeconomic burdens. Thus, the efforts of regenerative medicine have been focused on the development of non-biodegradable materials resembling bone features. Con…
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Modifications in Glass Ionomer Cements: Nano-Sized Fillers and Bioactive Nanoceramics Open
Glass ionomer cements (GICs) are being used for a wide range of applications in dentistry. In order to overcome the poor mechanical properties of glass ionomers, several modifications have been introduced to the conventional GICs. Nanotech…
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Froth flotation of scheelite – A review Open
Froth flotation of scheelite has regained new focus since the 2010s and research regarding floatability and reagents has made great progress over the years. The main objective was and remains the selective flotation of scheelite from other…
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Rare earth element mobility in and around carbonatites controlled by sodium, potassium, and silica Open
Rare earths concentrate by complexing with alkalis in carbonatite-derived hydrothermal fluids.
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Bioactivity studies of calcium magnesium silicate prepared from eggshell waste by sol–gel combustion synthesis Open
The present study focused on the synthesis of calcium magnesium silicate (akermanite, Ca2MgSi2O7) using eggshell biowaste (as calcium source), magnesium nitrate and tetraethyl orthosilicate (TEOS) as starting materials. Sol–gel combustion …
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Apatite Biominerals Open
Calcium phosphate apatites offer outstanding biological adaptability that can be attributed to their specific physico-chemical and structural properties. The aim of this review is to summarize and discuss the specific characteristics of ca…
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Osteocalcin is necessary for the alignment of apatite crystallites, but not glucose metabolism, testosterone synthesis, or muscle mass Open
The strength of bone depends on bone quantity and quality. Osteocalcin (Ocn) is the most abundant noncollagenous protein in bone and is produced by osteoblasts. It has been previously claimed that Ocn inhibits bone formation and also funct…
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Ceramic Mineral Waste-Forms for Nuclear Waste Immobilization Open
Crystalline ceramics are intensively investigated as effective materials in various nuclear energy applications, such as inert matrix and accident tolerant fuels and nuclear waste immobilization. This paper presents an analysis of the curr…
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A carbonate-rich lake solution to the phosphate problem of the origin of life Open
Significance Phosphate is crucial for the origin of life because it is ubiquitous in key biomolecules. A major issue is that prebiotic syntheses use concentrated phosphate to incorporate phosphate into biomolecules, whereas natural waters …
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TRACE ELEMENT SIGNATURE OF PYRITE FROM THE LOS COLORADOS IRON OXIDE-APATITE (IOA) DEPOSIT, CHILE: A MISSING LINK BETWEEN ANDEAN IOA AND IRON OXIDE COPPER-GOLD SYSTEMS? Open
Although studies have proposed that iron oxide-apatite (IOA) deposits may represent the deeper roots of some Andean iron oxide copper-gold (IOCG) systems, their genetic links remain obscure and controversial. A key question when considerin…
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Trace Element Analysis of Minerals in Magmatic-Hydrothermal Ores by Laser Ablation Inductively-Coupled Plasma Mass Spectrometry: Approaches and Opportunities Open
Laser ablation inductively-coupled plasma mass spectrometry (LA-ICP-MS) has rapidly established itself as the method of choice for generation of multi-element datasets for specific minerals, with broad applications in Earth science. Variat…
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3D printing of mesoporous bioactive glass/silk fibroin composite scaffolds for bone tissue engineering Open
The fabrication of bone tissue engineering scaffolds with high osteogenic ability and favorable mechanical properties is of huge interest. In this study, a silk fibroin (SF) solution of 30 wt% was extracted from cocoons and combined with m…
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Amelogenin and enamel biomimetics Open
Mature tooth enamel is acellular and does not regenerate itself.
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Evidence for dissolution-reprecipitation of apatite and preferential LREE mobility in carbonatite-derived late-stage hydrothermal processes Open
The Tundulu and Kangankunde carbonatite complexes in the Chilwa Alkaline Province, Malawi, contain late-stage, apatite-rich lithologies termed quartz-apatite rocks. Apatite in these rocks can reach up to 90 modal% and displays a distinctiv…
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Apatite: a U-Pb thermochronometer or geochronometer? Open
The Ministry of Mineral Resources (MMR) of the Greenland Government is acknowledged for supporting the field and analytical work in the Maniitsoq region, SW Greenland.
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Experimental investigation of F, Cl, and OH partitioning between apatite and Fe-rich basaltic melt at 1.0–1.2 GPa and 950–1000 °C Open
Apatite-melt partitioning experiments were conducted in a piston-cylinder press at 1.0-1.2 GPa and 950-1000 °C using an Fe-rich basaltic starting composition and an oxygen fugacity within the range of ΔIW-1 to ΔIW+2. Each experiment had a …
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Luminescent Hydroxyapatite Doped with Rare Earth Elements for Biomedical Applications Open
One new, promising approach in the medical field is represented by hydroxyapatite doped with luminescent materials for biomedical luminescence imaging. The use of hydroxyapatite-based luminescent materials is an interesting area of researc…
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Runx2/Osterix and Zinc Uptake Synergize to Orchestrate Osteogenic Differentiation and Citrate Containing Bone Apatite Formation Open
Citrate is essential to biomineralization of the bone especially as an integral part of apatite nanocomposite. Citrate precipitate of apatite is hypothesized to be derived from mesenchymal stem/stromal cells (MSCs) upon differentiation int…
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The Bayan Obo (China) giant REE accumulation conundrum elucidated by intense magmatic differentiation of carbonatite Open
The Bayan Obo deposit in China is endowed with the largest rare earth element (REE) resource in the world. The mechanism resulting in this REE enrichment has been the focus of many studies. Carbonatite is known globally as the most favorab…
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Technical Note: Calculation of stoichiometry from EMP data for apatite and other phases with mixing on monovalent anion sites Open
A new method is presented for calculating the chemical formula for apatite, and any other mineral that features mixing between halogens and hydroxyl ions on monovalent anion sites, from electron microprobe data that omit H2O determination.…
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Biomimetic Mineralization of Biomaterials Using Simulated Body Fluids for Bone Tissue Engineering and Regenerative Medicine <sup/> Open
Development of synthetic biomaterials imbued with inorganic and organic characteristics of natural bone that are capable of promoting effective bone tissue regeneration is an ongoing goal of regenerative medicine. Calcium phosphate (CaP) h…
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Heterogeneous distribution of H<sub>2</sub>O in the Martian interior: Implications for the abundance of H<sub>2</sub>O in depleted and enriched mantle sources Open
We conducted a petrologic study of apatite within 12 Martian meteorites, including 11 shergottites and one basaltic regolith breccia. These data were combined with previously published data to gain a better understanding of the abundance a…